Structure of the SecA-SecY complex with the substrate FtsQ-LacY(+7C)
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| A | SCOP2B Superfamily | RecA-like P-loop NTPases | 8040163 | 3002019 | SCOP2B (2022-06-29) |
| A | SCOP2B Superfamily | Helical scaffold and wing domains of SecA | 8040160 | 3001322 | SCOP2B (2022-06-29) |
| A | SCOP2B Superfamily | RecA-like P-loop NTPases | 8040163 | 3002019 | SCOP2B (2022-06-29) |
| A | SCOP2B Superfamily | Pre-protein crosslinking domain of SecA | 8040159 | 3001119 | SCOP2B (2022-06-29) |
| A | SCOP2B Superfamily | RecA-like P-loop NTPases | 8040165 | 3002019 | SCOP2B (2022-06-29) |
| G | SCOP2B Superfamily | GFP-like | 8096046 | 3000576 | SCOP2B (2022-06-29) |
| C [auth E] | SCOP2B Superfamily | Protein translocase subunit SecE-like | 8053312 | 3002174 | SCOP2B (2022-06-29) |
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| A | LRR_1, LRR_5, LRR_6, LRR_8 | e8ya0A01 | A: alpha bundles | X: Helical bundle insertion in helicase domains | H: Helical bundle in Hef helicase | T: Helical bundle in Hef helicase | F: LRR_1, LRR_5, LRR_6, LRR_8 | ECOD (develop294) |
| G | LRR_1, LRR_5, LRR_6, LRR_8 | e8ya0G01 | A: alpha bundles | X: Helical bundle insertion in helicase domains | H: Helical bundle in Hef helicase | T: Helical bundle in Hef helicase | F: LRR_1, LRR_5, LRR_6, LRR_8 | ECOD (develop294) |
| F [auth C] | LRR_1, LRR_5, LRR_6, LRR_8 | e8ya0C01 | A: alpha bundles | X: Helical bundle insertion in helicase domains | H: Helical bundle in Hef helicase | T: Helical bundle in Hef helicase | F: LRR_1, LRR_5, LRR_6, LRR_8 | ECOD (develop294) |
| C [auth E] | LRR_1, LRR_5, LRR_6, LRR_8 | e8ya0E01 | A: alpha bundles | X: Helical bundle insertion in helicase domains | H: Helical bundle in Hef helicase | T: Helical bundle in Hef helicase | F: LRR_1, LRR_5, LRR_6, LRR_8 | ECOD (develop294) |
| B [auth Y] | LRR_1, LRR_5, LRR_6, LRR_8 | e8ya0Y01 | A: alpha bundles | X: Helical bundle insertion in helicase domains | H: Helical bundle in Hef helicase | T: Helical bundle in Hef helicase | F: LRR_1, LRR_5, LRR_6, LRR_8 | ECOD (develop294) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| D [auth V] | Heavy Chain | IGHV1 | - | protein translocase subunit secy | protein translocase subunit sece | SAbDab (2026-03-20) |
| F [auth C] | Heavy Chain | IGHV1 | - | green fluorescent protein | protein translocase subunit seca | SAbDab (2026-03-20) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF01043 | SecA preprotein cross-linking domain (SecA_PP_bind) | SecA preprotein cross-linking domain | The SecA ATPase is involved in the insertion and retraction of preproteins through the plasma membrane. This domain has been found to cross-link to preproteins, thought to indicate a role in preprotein binding. The pre-protein cross-linking domai ... | Domain | |
| PF07517 | SecA DEAD-like domain (SecA_DEAD) | SecA DEAD-like domain | SecA protein binds to the plasma membrane where it interacts with proOmpA to support translocation of proOmpA through the membrane. SecA protein achieves this translocation, in association with SecY protein, in an ATP dependent manner [1,2]. This dom ... | Domain | |
| PF07516 | SecA Wing and Scaffold domain (SecA_SW) | SecA Wing and Scaffold domain | - | Family | |
| PF21090 | SecA P-loop domain (P-loop_SecA) | SecA P-loop domain | SecA is the preprotein translocase ATPase subunit and a superfamily 2 (SF2) RNA helicase [4]. This entry corresponds to the second P-loop domain. | Domain | |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Membrane Protein Annotation: PDBTM PDBTM Database Homepage
| Chains | External Link | Comment |
|---|---|---|
| PDBTM | Annotated as membrane protein by PDBTM |














